The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 10
... planets , we must alter the scale again , making the man sink far below visibility . With a reduction of a million ... planets or " asteroids " , few of which on this scale are much larger than grains of sand . We have to travel 483 ...
... planets , we must alter the scale again , making the man sink far below visibility . With a reduction of a million ... planets or " asteroids " , few of which on this scale are much larger than grains of sand . We have to travel 483 ...
Pagina 43
... planets could be reached with little more trouble than the Moon itself . Before we go on to discuss the building of true , man - carrying spaceships , we must look into this ... planet in order to keep up with it 43 THE ROAD TO THE PLANETS.
... planets could be reached with little more trouble than the Moon itself . Before we go on to discuss the building of true , man - carrying spaceships , we must look into this ... planet in order to keep up with it 43 THE ROAD TO THE PLANETS.
Pagina 120
... planets rather than their dimensions and distances apart - though it is worth looking at Figure again to remind ourselves of these . For reasons which are still unknown , the planets appear to form two quite distinct classes . On the ...
... planets rather than their dimensions and distances apart - though it is worth looking at Figure again to remind ourselves of these . For reasons which are still unknown , the planets appear to form two quite distinct classes . On the ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
Automatic Rocket Surveying Mars | 4 |
THE EARTH AND ITS NEIGHBOURS | 9 |
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acceleration already astronautics astronomers atmosphere atomic rockets body bricks British Astronomical Association build carry certainly Chapter chemical completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure free orbit fuel Galaxy gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing light light-years lunar Mars and Venus Martian means Mercury meteors minutes missile Moon Moon's motors never observed oxygen payload perhaps planetary planets Pluto possible pounds pressure pressurised probably problem produce propellant propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason refuelling return to Earth rocket power satellite Saturn scientific ship Solar System space space-flight space-station space-suits space-travel spaceship speed spinning stars stations surface take-off telescope temperature terrestrial thousand thrust trolley Uranus voyage weight